中文

Journal of Applied Sciences ›› 2004, Vol. 22 ›› Issue (3): 380-383.

• Articles • Previous Articles     Next Articles

The Tree-Structure Algorithm for the Elimination-Reduction of Air-Column-Inherent Frequency in the Multi-degree-of-Freedom Piping System

LÜ Lin-tao1, CUI Du-wu1, LÜ Hui2   

  1. 1. Department of Computer and Engineering, Xi'an University of Technology, Xi'an 710048, China;
    2. College of Civil Engineering, Chongqing University, Chongqing 400045, China
  • Received:2003-06-30 Revised:2003-11-24 Online:2004-09-30 Published:2004-09-30

PDF

81

Abstract: Based on such theories as wavelet analysis, applied mathematics and data structure, the tree-structured geometrical model and algorithm for the elimination-reduction of air-column-inherent frequency were proposed in order to avoid resonance between the air-column-inherent frequency of the multi-degree-of-freedom piping system and the mechanical-inherent frequency. By applying the software system based on this algorithm to the fluctuation analysis of a piping system, it was found that its calculation coincide with the experimental results very well. Therefore, it has both theoretic and practical value to the designing of a new piping system and the rebuilding of an old one in petroleum, chemical and electric power industries.

Key words: elimination-reduction, tree-structured geometrical model, multi-degree-of-freedom piping system, sympathetic fluctuation, air-column inherent frequency, tree-structured algorithm

CLC Number: